Effect of Fe and Fe–Ba substitution on the piezoelectric and dielectric properties of lead zirconate titanate ceramics

2011 ◽  
Vol 176 (3) ◽  
pp. 242-245 ◽  
Author(s):  
S.R. Sangawar ◽  
B. Praveenkumar ◽  
H.H. Kumar ◽  
D.K. Kharat
Keyword(s):  
Dielectric Properties ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Titanate Ceramics ◽  
Ba Substitution

Effect of TiO2 Nanopowders on the Sintering and Electric Properties of Lead Zirconate Titanate Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 228-230
Author(s):  
Guang Hui Li ◽  
Zhang Lian Hong ◽  
Li Xia Peng ◽  
Min Quan Wang
Keyword(s):  
Dielectric Properties ◽  
Bulk Density ◽  
Lead Zirconate Titanate ◽  
Sintering Temperature ◽  
Lead Zirconate ◽  
Electric Properties ◽  
Pzt Ceramics ◽  
Zirconate Titanate ◽  
Titanate Ceramics ◽  
Tio2 Nanopowder

XRD, SEM, bulk density and dielectric properties measurements were used to investigate the effect of TiO2 nanopowder substitution for conventional TiO2 micro-powder on the sintering and electric properties of PZT ceramics. Results revealed that the sintering temperature of dense Pb(Zr0.53Ti0.47)O3 ceramics was lowered about 50°C ~ 100°C when 20% and 40% of conventional TiO2 micro-powder was substituted by TiO2 nanopowder. The electric properties were kept or even enhanced in the PZT ceramics adopted the TiO2 nanopowder.

Convergent-bceam diffraction studies on lead zirconate titanate Ceramics

1986 ◽  
Vol 44 ◽  
pp. 482-483
Author(s):  
M.L.A. Dass ◽  
T.A. Bielicki ◽  
G. Thomas ◽  
T. Yamamoto ◽  
K. Okazaki
Keyword(s):  
Lead Zirconate Titanate ◽  
Direct Proof ◽  
Lead Zirconate ◽  
Subsolidus Phase ◽  
Pzt Ceramics ◽  
Subsolidus Phase Diagram ◽  
Zirconate Titanate ◽  
Two Phases ◽  
Cbd Method ◽  
Titanate Ceramics

Lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), ceramics are ferroelectrics formed as solid solutions between ferroelectric PbTiO3 and ant iferroelectric PbZrO3. The subsolidus phase diagram is shown in figure 1. PZT transforms between the Ti-rich tetragonal (T) and the Zr-rich rhombohedral (R) phases at a composition which is nearly independent of temperature. This phenomenon is called morphotropism, and the boundary between the two phases is known as the morphotropic phase boundary (MPB). The excellent piezoelectric and dielectric properties occurring at this composition are believed to.be due to the coexistence of T and R phases, which results in easy poling (i.e. orientation of individual grain polarizations in the direction of an applied electric field). However, there is little direct proof of the coexistence of the two phases at the MPB, possibly because of the difficulty of distinguishing between them. In this investigation a CBD method was found which would successfully differentiate between the phases, and this was applied to confirm the coexistence of the two phases.

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